Don't bother if you're in Australia. YMMV. I'm located in SYD - I went to Citi's "Wealth Management" branch in Pitt St. A dude who was sitting at the front desk walked up to the door and wasn't prepared to open up the doors he spoke through the cracks and told me that I couldn't make an appointment and to try to call the main number. No Thanks. Moved all my money out of Citi US as soon as I set up with HSBC US. I'm not a Packer but expected better treatment than this.
I've had a Citi US checking account (and Credit Card) which I've had open for years which I opened up at the branch. They wouldn't let me open up a new one remotely - had to go back to the US to do so.
There is talk HSBC is looking to exit the US so if you can use the Premier service, do it now before that option is closed off.